The largest city and chief port of the Canary Islands, it was founded in 1478 and served as a base for the Spanish conquest of Tenerife and La Palma islands. It grew after the port was constructed in 1883. It is a year-round resort; historic sites include a 15th-century cathedral and the house of Christopher Columbus.

Founded in 1478 at the mouth of a ravine, it was named for the abundant palms there. The city was the headquarters for the Spanish conquest of Tenerife and La Palma islands and was later a major supply port for ships bound for Spanish America. The oldest houses, dating from the late 15th century, are found in the colonial quarter (Vegueta), along with the cathedral of Santa Ana (begun 1497) and the house of Christopher Columbus (Columbus, Christopher). Other notable landmarks include the Canario Museum, which contains relics of the extinct island inhabitants known as the Guanches (seeGuanche and Canario), and the Pueblo Canario, a group of buildings in the old Canary style of architecture.

Growth of Las Palmas was slow until 1883, the year in which construction of the port was begun. The modern section lies mostly below 100 feet (30 metres) in elevation and within 0.5 mile (0.8 km) of the sea, which it fronts for 5 miles (8 km). Development of the modern city is largely attributable to foreign (especially British) merchants. The port of La Luz, located 4 miles (6 km) north of the colonial quarter, has a well-equipped harbour. It is sheltered westward by a rocky promontory, La Isleta, which is joined to the island by a narrow sandy isthmus (now built over) and eastward by long breakwaters. The port, with oil-bunkering facilities, is on the main shipping routes between Europe and South America and is entered annually by thousands of ships, which also contributes to a significant fishing trade. The high maritime traffic, however, has caused Las Palmas to be designated an unregulated, or “soft,” port; fishing fleets have been able to pass through unnoticed and have traded fish illegally. The port is also a transportation hub for travel to the Iberian Peninsula. Chief exports include cement, oil, bananas, tomatoes, and other agricultural produce. Tourism, based on the mild winter climate, excellent beaches, and resort facilities, accounts for more than three-fifths of the economy. An airport lies 11 miles (18 km) south of Las Palmas. Pop. (2006 est.) 308,993.